From Traxxas:
Traxxas introduces a new line of drift tires for the 4-Tec 2.0. These hard-compound plastic tires provide the perfect combination of durability and breakaway potential for any drifting surface. Tough enough for carpet, concrete, or even asphalt, these tires hold up battle after battle. Precision-glued at the factory, Traxxas drift tires come pre-mounted on both narrow (front) and wide (rear) configurations. Chose from three colorful wheel options to customize your ride: orange, green, or black chrome.

RC drift cars require a rigid chassis, loads of horsepower, and the right set of drift tires. The Traxxas 4-Tec 2.0 chassis is the perfect platform for long, fluid drifts through the corners. The 4-Tec’s high-angle steering option provides massive lock potential while the dual bellcrank steering and adjustable servo saver deliver silky smooth steering response and control. The optional differential spool (#8379) locks the front or rear axles for predictable breakaway, and now the power hits the pavement with all new drift tires.